Check out THIS Rocket Mass Heater

[larsm...@gmail.com]

Here's an interesting and helpful page I found as a result of hours of
leafing thru so many different links which I found reference to on
Google.com

http://www.cobmob.com.au/Cob/Gallery/Pages/Rocket_Stove.html#3

I especially appreciated detail of many of the photos. Excellent
info.

Hope you find this information helpful.